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# Copyright (c) 1997-2024
# Ewgenij Gawrilow, Michael Joswig, and the polymake team
# Technische Universität Berlin, Germany
# https://polymake.org
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2, or (at your option) any
# later version: http://www.gnu.org/licenses/gpl.txt.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#-------------------------------------------------------------------------------
package SplitsTree::File;
use Polymake::Struct (
[ '$title' => 'undef' ],
'@metric',
'$taxa',
);
sub toString {
my ($self)=@_;
my $title=$self->title || "unnamed";
my $ntax=@{$self->metric};
my $text = <<".";
#NEXUS
[! $title ]
BEGIN taxa;
DIMENSIONS ntax=$ntax;
TAXLABELS
.
map { $text .= " ".$self->taxa->($_)."\n" } 0..$ntax-1;
$text .= <<".";
;
END;
BEGIN distances;
DIMENSIONS ntax=$ntax;
FORMAT
triangle=LOWER
diagonal
labels
missing=?
;
MATRIX
.
for (my $n=0; $n < $ntax; ++$n) {
$text .= " ".$self->taxa->($n)." ".Visual::print_coords($self->metric->[$n]->slice(sequence(0,$n+1)))."\n";
}
$text .= << ".";
;
END;
.
}
1
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# c-basic-offset:3
# End:
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